Altera Corporation
Reference Manual
1–9
October 2006
Cyclone II FPGA Starter Development Board
Introduction
■
A switch produces logic 0 when in the DOWN
(closest to the edge of the board) position
and logic 1 when in the UP position
Clock Inputs
■
50-MHz oscillator
■
27-MHz oscillator
■
24-MHz oscillator
■
SMA external clock input
Audio CODEC
■
Wolfson WM8731 24-bit sigma-delta audio CODEC
■
Line-level input, line-level output, and microphone input jacks
■
Sampling frequency: 8 to 96 KHz
■
Applications for MP3 players and recorders, PDAs,
smart phones, voice recorders
VGA Output
■
Uses a 4-bit resistor-network DAC
■
15-pin high-density D-sub connector
■
Supports up to
640x480 at 60-Hz refresh rate
■
Can be used with the Cyclone II FPGA to implement
a high-performance TV encoder
Serial Ports
■
One RS-232 port
■
One PS/2 port
■
DB-9 serial connector for the RS-232 port
■
PS/2 connector for connecting a PS2 mouse
or keyboard to the board
Dual 40-Pin Expansion Headers
■
72 Cyclone II I/O pins and 8 power and ground lines
connect to two, 40-pin expansion connectors
■
40-Pin header designed to accept a standard 40-pin
ribbon cable used for IDE hard drives
■
Resistor protection provided